Process of milling cotton-seed.



No. 825,534. PATBNTBD JULY 10, 1906. H. E. HAWK. PRGGBSS OF MILLING SUTTON SEED.

APPLIGATOH ILED BES. 1905.

Q MULLER.

EN.Z.

SIPARMNG cuuvzvym nieuwe jim?.

N0. l. RDLLS.

Mib -1a/...

Simi nca as /Mmf Q.. ,cih/ www@ U'NITE'QDY STATES PATENT OFFICE.

'Ne 325,534.v

Specification of Letters Patent.

Patented July 1Q, 1956. l

Application flied December 2B. 1965. Serie! He. 2931.412.

To all whom it moyeoneern:

Be it known that I, HAL!) E. HAWK, a, citizen of the United States, residing et Gren shaw, in the county of Panola. and State of Mississippi, have invented new and useful 11nprovementsv in Brocesses of Gettoni Seed, of which the following is e. s eciicston. This invention is e process of mi ling cotton-V seed, heving for its object to obtain seperate and different qualities of oil and cake end-'to provide a s stem whereby the yield-of the products Wi lbe increased.

In the present or usual method of miiiing'` it is the practice to hull the grain and to separate the meets rommost of the hulls, 'part of the hulls bein left in orreturned to themeets and mixed with the same.

lto increase the yield or amount, by weight, of the cake. The extent to which this mixin or adulteration cen he mede is limited "by ew in mostStetes. The meats with the hulls mixed therein constitute a singles-quality product, the resulting oil and cake'bein of a single' grade. This practice has the de ect r that ythe oil is of inferior quality-that is, in- 'feriorto what it would be if the meats sione Y whereas when hulls are mixed wit the meats v,lower pressure and temperature end more Y time are required, this variation of treatment being Vrequired in consequence 'of the presence of the hulls and fibrous matter in the meats.

'The present practice is to endeavor to strike an average with respect tol pressure, temperorder to make the tneatment corres on the materiel es nearly as possible'. T s is defeetive, andthemaximum yield of oil end cake is not obtained.` Furthermere,the caire is oi lowand A.unces'tein gredeowing to the resence of hulls.' therein, since the amount of E cannot be exactly re ated, bece'ciseV it depends somewhat upon t e nature ci theY seed, the natureof thhullingY and separating, 'and the skill of 'the operator." i By the herein disclosed a reduci This then teken `to the rolls and thecsoiserssnd' the oil afterward expressed. The ohjeet'e putting part of the huile in vwith the meets is' time thecooking and pressin in to Y tion and siiaretion is effective whereby stock of two gra esis produced, the No.1 or prime grade containing nothing but pure meats and the No. 2 or inferior grade containing mixed' meets and hulls. Each of these edes rcceives separate treatment, according toits nature, so that the oil resulting from the No. 1 grede is the maximum in quantity and uality und of best color and is merchentab e as such, together with the" pure cake resultin r therefrom, and the No. 2 stock produces or end cakeofinferior'grsde. li'desired, the cake of both grades can afterward be ground and mixed to produce a. commercial article oa certain quality. A v The accompanyin drawing is e diagrammatic view or-iiow-s eet of an embodiment "of the system. I K

Referring specificsiiy to the drawing, the seed after being (deemed, es" rususj, is put through the huller i; which may conveniently be of the breast and cylinder t pe. From this itis received-on an ordinary s aking-screen 2. This effects a coarse separation, the meets and finer matter which go through the screen being run throughegrnd ing-machine 3, which has the function o f en equalizer or sizer. Y Thepurpose ci this Y1s to size or equalize the meats coming from the shaker, inasmuchas the meets' or particles thereof'fare of -diierent sizes, and when the stock enters the shaker from the huliersome of the meets are erge and some small, and the secuentiy considerab e 'lint and huls Velse Y pass through. Y, For su sequent treatment in the centnug'eirelis it is desirrable or necessary' thet l the meets he reduced to a substantially uniform Size, so that on'the 'first reel a finer erfortien of cloth can' be used. The grin lig-:machine is thus essentisY to reduce'the', meats toVV substantiel urnxthe lint and hull perticlesl` From the. sizer t e heavier particlesA beirdeli'ered to a sep-` vMating-c'oliveyei'I.5f'end e parte or 'reyer 5 has slides scsi-ranged therein as to out out or drop thelmeets as they pass ytherecleen condition ashigh-gide stock, being practiceliy pure meats.` ese ere tekento shaker necessaria* must have large perform4 -tions for all mea l tov ess through, and con ieces o ornity of size, vvhereasithes iittie eect onV or grinder l3 thestock'stken to a c'entrifu al ree! 4, by which eseperetion is effected,

through, discharging'them to a conveyor 6 1n' los : ing-rolls 22. This 5o The stock delivered to the 5 5 ered se arate from' the prime the No. 1 grinding-rolls 7, from which they ass to the No. 1 cookers 8, and thence to the o. 1 presses 9, producing oil of high grade and prime quality of light yellow color and 5 a resultin pure or prime quality of cake.

The tai ings from, the shaker-screen 2 pass to a huller 10, prefrabl of the disk type on account of the finer re uction needed, and the product is taken therefrom to a centrifuio gal reel 11, which separates and delivers toa separating or perforated conveyor 12, 1n which the4 pure meats are out out and delivered to the No. 1 rolls as part of the prime i stock and the tailings to a conveyer 13. The

i5 |tailings from the reels 4 and 11 and from the 2o 17. The pure meats cut out in the separating-conveyer 16 go as art ofthe rime stock to the No. 1 rolls, an the remainder of the product from the separating-conveyor 16 is delivered as No. 2 stock to the No. 2 grindstock consists parti of meats and partly of ground hulls. rom the grindingrolls it passes to the No. 2 cook-4 ers 23 and presses 24, producin a No. 2 or inferior quality of oil. The tai ings from the 3c reel 15 are taken to a finishing-reel 18, whose separating-conveyor 19 cuts out part of the meats, which go as pure meats to the No. 1 stock, and the remainder goes to the lain conveyer 20 and thence to the No. 2 ro 1s as 3 5 part of the inferior stock. The practically clear hulls, lint,.and liber tail ofi" the\reel 18 to the lint and ber packer or press 21, in which the matter is packed into bales for shi nient, as it is valuable as stock for paper- As stated before, the stock which goes to the No. 1 rolls, cookers, and presses-1s high-4 grade and practically pure meat. It is cooked With the proper pressure and heat to 4o ma 'ng preserve the highest color and purity to the oil and cake, thus making its commercial value the highest, theoil eing run to the storage-tank and the cake delivered ready to be ground into theV meal or shipped Whole. No. 2 rolls, cookers, and presses is there ven the kind of treatment with respect to eat and pressure that the nature of the stock demands, producinga No. 2 oil and cake, which are delivproducts.

It will be seen that there 1s one Ygrade at least-that is, the rime grade-of which the o erator has comp ete control, the nature of tige seed or other ocal conditions no effect on the quality. Any uncertainty or variation is confined te the product of No. 2 stock instead of to the whole product, as heretofore. It prevents over and under cooking of the best-quality product and as a result fgives a greater total quantity of oil, part o which is of prime quality and better than the average.

Although illustrated in connection with a particular apparatus, the nature of the machinos is immaterial, since other machines to produce the same result would do as well.

helefore the invention is not limited to the exact embodiment shown.

I clam- 1. A process of milling eottonvseed, oonsisting of hulling the seed, separating the oilbearing part of the stock into two grades, one containing substantially. pure meats and the other' containing meats and some of the hulls,

and extracting oil separately from the latter grade.

2. A recess of milling cotton-seed, consisting in hulling the seed, separating the stock into three products, one consisting of substantially pure meats, another consisting of meats and art of the hulls, and the other consisting of ulls, and treating the second of the products mentioned separately for the extraction of oil therefrom.

3. \A process of milling cotton-seed, consistinflr in, passing the stock throu .-h a series of reductions, separating Athe su stantially Elura meats after each reduction, to form a 'gh-(grade oilfbearing product, se arating mixe meats and hulls after part the reductions, to form an inferior-grade oil-bearing product, and treating said inferior grade separately for the extraction of oil therefrom.

4. A recess of milling cotton-seed, consisting 1n hulling the seed, separating the hulls and unreduced stock from the meats,

nHAwK.

Witnesses W. S. MooN, W. `K. Fianna IIO 

